|Date|Location|Winning team|Winning team|Losing team|Losing team|Notes|
|---|---|---|---|---|---|---|
|November 12, 2006|Christl Arena (West Point)|Pittsburgh men|86|Western Michigan men|67|PITT/WMU men's game; inaugural Maggie Dixon Classic|
|November 12, 2006|Christl Arena (West Point)|Ohio State|77|Army|41|PITT/WMU men's game; inaugural Maggie Dixon Classic|
|December 8, 2007|Madison Square Garden (New York City)|Duke|51|Pittsburgh|49|first Maggie Dixon Classic at Madison Square Garden|
|December 8, 2007|Madison Square Garden (New York City)|Rutgers|75|Army|68|first Maggie Dixon Classic at Madison Square Garden|
|December 14, 2008|Madison Square Garden (New York City)|Rutgers|59|Army|38|UConn - won National Championship|
|December 14, 2008|Madison Square Garden (New York City)|Connecticut|77|Penn State|63|UConn - won National Championship|
|December 13, 2009|Madison Square Garden (New York City)|Baylor|68|Boston College|55||
|December 13, 2009|Madison Square Garden (New York City)|Tennessee|68|Rutgers|54||
|December 19, 2010*|Madison Square Garden (New York City)|Texas A&M|79|Rutgers|50|A&M - won National Championship; UConn - 88th Consecutive victory of a record 90|
|December 19, 2010*|Madison Square Garden (New York City)|Connecticut|81|Ohio State|50|A&M - won National Championship; UConn - 88th Consecutive victory of a record 90|
|December 11, 2011|Madison Square Garden (New York City)|Baylor|73|St. Johns|59|Baylor - won National Championship;|
|December 11, 2011|Madison Square Garden (New York City)|Tennessee|84|DePaul|61|Baylor - won National Championship;|
|December 9, 2012|Madison Square Garden (New York City)|Rutgers|73|Louisiana Tech|46|LA Tech - won inaugural NCAA Championship|
|December 9, 2012|Madison Square Garden (New York City)|Duke|60|St. Johns|42|LA Tech - won inaugural NCAA Championship|
|December 22, 2013|Madison Square Garden (New York City)|St. Johns|72|Texas A&M|70||
|December 22, 2013|Madison Square Garden (New York City)|Connecticut|80|California|47||

Question: how many different teams have participated in the maggie dixon classic
Answer: 18